<template>
    <div class="wrapper">
          <swiper :options="swiperOption" v-if="showSwiper">
            <!-- slides -->
            <swiper-slide v-for="item in list" :key="item.id">
                <img class="swiper-img" :src="item.imgUrl" alt="">
            </swiper-slide>
            <!-- Optional controls -->
            <div class="swiper-pagination"  slot="pagination"></div>
         </swiper>
    </div>
</template>

<script>
export default {
  name: "HomeSwiper",
  props: {
     list: Array
  },
  data () {
      return {
          swiperOption: {
              pagination: ".swiper-pagination",
              loop: true
          }
      }
  },
  computed: {
     showSwiper () {
         return this.list.length;
     }
  }
};
</script>

<style lang="stylus" scoped>
// 下面这种写法就不受scoped限制了
    .wrapper >>> .swiper-pagination-bullet-active
        background: #fff
    .wrapper
        overflow: hidden
        width: 100%
        height: 0
        padding-bottom: 26.66%
        background: #ccc
        .swiper-img
          width: 100%
</style>

